19477600

素因数分解:

$2^5\times 5^2\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:368

約数の個数: 72

約数和(自身を含む): 48231288

約数和(自身を除く): 28753688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 160, 194, 200, 251, 388, 400, 485, 502, 776, 800, 970, 1004, 1255, 1552, 1940, 2008, 2425, 2510, 3104, 3880, 4016, 4850, 5020, 6275, 7760, 8032, 9700, 10040, 12550, 15520, 19400, 20080, 24347, 25100, 38800, 40160, 48694, 50200, 77600, 97388, 100400, 121735, 194776, 200800, 243470, 389552, 486940, 608675, 779104, 973880, 1217350, 1947760, 2434700, 3895520, 4869400, 9738800, 19477600]

約数ペア:

[(1, 19477600), (2, 9738800), (4, 4869400), (5, 3895520), (8, 2434700), (10, 1947760), (16, 1217350), (20, 973880), (25, 779104), (32, 608675), (40, 486940), (50, 389552), (80, 243470), (97, 200800), (100, 194776), (160, 121735), (194, 100400), (200, 97388), (251, 77600), (388, 50200), (400, 48694), (485, 40160), (502, 38800), (776, 25100), (800, 24347), (970, 20080), (1004, 19400), (1255, 15520), (1552, 12550), (1940, 10040), (2008, 9700), (2425, 8032), (2510, 7760), (3104, 6275), (3880, 5020), (4016, 4850)]